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The use of recycled masonry aggregate for concrete is mostly limited by the worse properties in comparison with natural aggregate. For these reasons it is necessary to find ways to improve the quality of recycled masonry aggregate concrete and make it more durable. One possibility is utilization of crystalline admixture which was verified in this study by laboratory measurements of key material properties and durability. The positive influence of mineral admixture was proved for freeze-thaw resistance. The positive impact to carbonation resistance was not unambiguous. In conclusion, the laboratory evaluation shows how to improve the durability of recycled masonry aggregate concrete, however, it is necessary to investigate more about this topic.
Tereza Pavlů; Kristina Fořtová; Jakub Řepka; Diana Mariaková; Jiří Pazderka. Improvement of the Durability of Recycled Masonry Aggregate Concrete. Materials 2020, 13, 5486 .
AMA StyleTereza Pavlů, Kristina Fořtová, Jakub Řepka, Diana Mariaková, Jiří Pazderka. Improvement of the Durability of Recycled Masonry Aggregate Concrete. Materials. 2020; 13 (23):5486.
Chicago/Turabian StyleTereza Pavlů; Kristina Fořtová; Jakub Řepka; Diana Mariaková; Jiří Pazderka. 2020. "Improvement of the Durability of Recycled Masonry Aggregate Concrete." Materials 13, no. 23: 5486.
Research project is focused on the experimental verification of high-performance concrete (HPC) with full replacement of fine fraction. This paper deals with HPC mixtures containing recycled glass materials (waste glass powder from municipal waste, waste glass powder from photovoltaic panels, grinding waste glass from jewellery). The research is based on the results of previous student grant. A recipe that was made during 2017 is used and optimized according to the waste glass powder properties. The influence of different local sources is monitored. The HPC mixtures are tested for mechanical properties (flexural strength, compressive strength) and compared with the results from the previous research. Flowability is tested and all the mixtures are workable. The mixture with grinding glass (GG) showed the highest results in flexural and compressive strength compared to the reference sample, the use as a substitute for fine fraction in HPC is conceivably attitude. The municipal waste glass mixture and the mixture with the waste glass from photovoltaic panels is not usable as HPC.
D Mariaková; Z Jirkalová; L Laiblová. Waste glass as a replacement for fine fraction in high-performance concrete. IOP Conference Series: Materials Science and Engineering 2019, 660, 012033 .
AMA StyleD Mariaková, Z Jirkalová, L Laiblová. Waste glass as a replacement for fine fraction in high-performance concrete. IOP Conference Series: Materials Science and Engineering. 2019; 660 (1):012033.
Chicago/Turabian StyleD Mariaková; Z Jirkalová; L Laiblová. 2019. "Waste glass as a replacement for fine fraction in high-performance concrete." IOP Conference Series: Materials Science and Engineering 660, no. 1: 012033.
This paper deals with investigation of high-performance concrete (HPC) with full replacement of the silica powder by the waste glass powder. The silica powder was replaced by two types of the waste glass powder, originated from different sources (waste glass powder from grinding jewelry and milling of municipal waste glass). The properties of the waste glass powder were examined and compared with the silica powder. The mechanical and durability properties of three HPC mixtures were experimentally verified. The bulk density, flexural strength, and compressive strength were tested on beams 40 × 40 × 160mm at age 28 and 60 days and after 0, 25, 50, 75 and 100 freeze-thaw cycles. There were observed slightly worse properties of mixtures with the waste glass powder in comparison with reference HPC.
Diana Mariaková; Tomáš Vlach; Tereza Pavlů. GLASS WASTE POWDER UTILIZATION IN HIGH PERFORMANCE CONCRETE. Acta Polytechnica CTU Proceedings 2019, 21, 24 -27.
AMA StyleDiana Mariaková, Tomáš Vlach, Tereza Pavlů. GLASS WASTE POWDER UTILIZATION IN HIGH PERFORMANCE CONCRETE. Acta Polytechnica CTU Proceedings. 2019; 21 ():24-27.
Chicago/Turabian StyleDiana Mariaková; Tomáš Vlach; Tereza Pavlů. 2019. "GLASS WASTE POWDER UTILIZATION IN HIGH PERFORMANCE CONCRETE." Acta Polytechnica CTU Proceedings 21, no. : 24-27.